Lens tray fastening device

ABSTRACT

Provided is a lens tray fastening device being capable of fastening a plurality of different types of lens trays. Two locating pins are arranged in each of the lens trays. The lens tray fastening device includes a base. The base is separated into a number of areas. Each area defines a first locating hole and a number of second locating holes. The position of the first locating hole corresponds to that of one of the locating pins, and the position of one of the second locating holes corresponds to that of the other second pin. The first locating hole is in cooperation with one of the second locating holes to engage with the two locating pins to position each of the lens trays onto the base.

BACKGROUND

1. Technical Field

The present disclosure relates to fastening devices and, particularly,to a lens tray fastening device.

2. Description of Related Art

During assembling a lens module needs a number of lens trays to receivea number of assembling lens s in order to complete the assembly process.The lens trays are positioned on the same lens tray fastening device.However, at present, a type of lens tray fastening device only canfasten a corresponding type of lens tray. In other words, differenttypes of lens tray need different types of fastening devices forfastening, which is costly.

Therefore, it is desirable to provide a lens fastening device, which canovercome the above-mentioned limitations.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the present disclosure can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is an exploded, isometric view of a lens tray fastening device,according to a first embodiment.

FIG. 2 is an assembled, isometric view of the lens tray fastening deviceof FIG. 1 in a first use state.

FIG. 3 is an assembled, isometric view of the lens tray fastening deviceof FIG. 1 in a second use state.

FIG. 4 is an assembled, isometric view of the lens tray fastening deviceof FIG. 1 in a third use state.

FIG. 5 is a schematic view of a first lens tray of FIG. 1.

FIG. 6 is an assembled, isometric view of a lens tray fastening device,according to a second embodiment.

FIG. 7 is an assembled, isometric view of a base of the lens trayfastening device in FIG. 6.

DETAILED DESCRIPTION

FIGS. 1-4, illustrate a lens tray fastening device 100 according to afirst exemplary embodiment, for fastening a number of difference typesof lens trays, such as a first lens tray 20, a second lens tray 30, athird lens tray 40, for example.

The lens tray fastening device 100 includes a base 10. In the presentembodiment, the base 10 is substantially square. It should be notedthat, the base 10 also can be other shapes, such as circular. The base10 is separated into nine areas (shown as broken line in FIGS. 1-4). Inthe embodiment, the nine areas are arranged in a 3×3 array. The shape ofeach of the areas corresponds to that of the lens trays, and the shapeand size of the nine areas are the same. In the embodiment, the shapesof both the area and the lens tray are substantially square.Alternatively, the shapes of the area and the lens trays also can beother shapes. Each area defined in the base 10 defines a first locatinghole 11 and three second locating holes 11 a. The three second locatingholes 11 a are adjacent to each other. The first and second locatingholes 11, 11 a are all blind holes. The connection line between thefirst and second locating holes 11, 11 a are on the same diagonal line.

The number of the areas is not limited to nine, which can be set basedon requirement. The number of the second locating hole 11 a is notlimited to three, which can also be set corresponding to the types ofthe lens tray. For example, in the embodiment, the number of the typesof lens tray is three, such as, the first lens tray 20, the second lenstray 30, and the third lens tray 40, therefore, the base 10 definesthree second locating holes 11 a.

It is also noteworthy that, the areas of the base 10 are arranged in the3×3 array, which can arrange based on requirement.

Also referring FIG. 5, the shapes of the first lens tray 20, the secondlens tray 30, and the third lens tray 40 are the same, different amongthe first lens tray 20, the second lens tray 30, and the third lens tray40 are only in the size. Therefore, it only takes the structure of thefirst lens tray 20 as an example. The first lens tray 20 includes afirst surface 20 a and a second surface 20 b facing away from the firstsurface 20 a. Two locating pins 21 substantially perpendicularly extendupwards from the first surface 20 a. The position of one of the locatingpins 21 corresponds to that of the first locating hole 11, and theposition of the other locating pins 21 corresponds to that of one of thethree second locating holes 11 a. In the embodiment, the connection linebetween the two locating pins 21 are on the same diagonal line. Thefirst lens tray 20 defines a number of receiving holes 22 on the secondsurface 20 b. In the present embodiment, the receiving holes 22 arearranged in a 7×6 array. Each of the receiving holes 22 receives arespective lens (not shown).

In assembly, the first locating hole 11 is cooperative with one of thesecond locating holes 11 a to engage with the two locating pins 21 tolocate the first lens tray 20 onto the base 10.

FIGS. 6-7 illustrate a lens tray fastening device 200, in accordancewith a second exemplary embodiment. The lens tray fastening device 200is essentially similar to the lens tray fastening device 100 in thefirst embodiment. In this embodiment, the base 70 further defines twogroups of threaded holes 72. Each group includes three threaded holes72. The connection line of each group of threaded holes 72 is on thesame line. Each of the threaded holes 72 is defined on a boundarydefined by two adjacent areas of the base 10. The lens tray fasteningdevice 200 further includes a number different type of plates 50 and sixbolts 60. Each type of plates 50 corresponds to a respective type oflens trays. The plate 50 is a long strip and defines three through holes51 each corresponding to a respective threaded hole 72.

In assembly, it only takes the assembling of the first lens trays 20 onthe base 70 as an example. Each of the plates 50 bestrides two adjacentarrays of the first lens trays 20 and rests against peripheries of thefirst lens trays 20. Each of the through holes 51 aligns with arespective threaded hole 72. One of the bolts 60 passes through arespective through hole 51 and threadedly engages with a respectivethreaded hole 72 to firmly attach the first lens trays 20 on the base70, without making the plate 50 masking the receiving holes 22.

The number of the through holes 51 of the plate 50 is not limited tothree, which can be set basing on requirement.

It will be understood that the above particular embodiments are shownand described by way of illustration only. The principles and thefeatures of the present disclosure may be employed in various andnumerous embodiments thereof without departing from the scope of thedisclosure as claimed. The above-described embodiments illustrate thescope of the disclosure but do not restrict the scope of the disclosure.

What is claimed is:
 1. A lens tray fastening device for fastening aplurality of different types of lens trays, each of the lens trayscomprising a first locating pin and a second locating pin, the lens trayfastening device comprising: a base, the base comprising a plurality ofareas, each of the areas defining a first locating hole and a pluralityof second locating holes, the position of the first locating holespatially corresponding to that of the first locating pin, one of theplurality of second locating holes spatially corresponding to that ofthe second locating pin, the first locating hole being cooperative withone of the second locating holes to engage with the first and secondlocating pins to locate each of the lens trays onto the base.
 2. Thelens tray fastening device of claim 1, wherein the base is substantiallysquare, the connection lines between the first locating hole and thesecond locating holes are on the same diagonal line in each of theareas.
 3. The lens tray fastening device of claim 1, wherein both thefirst locating hole and the second locating holes are blind holes. 4.The lens tray fastening device of claim 1, wherein the areas of the baseare arranged in a 3×3 array.
 5. A lens tray fastening device forfastening a plurality of different types of lens trays, each of the lenstrays comprising a first locating pin and a second locating pin, thelens tray fastening device comprising: a base, the base comprising aplurality of areas, the areas arranged in a 3×3 array, each of the areasdefining a first locating hole and a plurality of second locating holes,the position of the first locating hole spatially corresponding to thatof the first locating pin, one of the plurality of second locating holesspatially corresponding to that of the second locating pin, the firstlocating hole being cooperative with one of the second locating holes toengage with the first and second locating pins to locate each of thelens trays onto the base, the base defining a plurality of groups ofthreaded holes, each of the threaded holes defined on the boundarydefined by two adjacent areas of the base; a plurality different type ofplates, each type of plates corresponding to a respective type of lenstrays, each of the plates defining a plurality of through holes, each ofthe through holes corresponding to a respective one of the threadedholes, each of the plates configured for bestriding two adjacent lenstrays and resting against peripheries of the two adjacent lens trays; aplurality of bolts, each of the bolts passing through a respective oneof the through holes and threadedly engaging with a respective one ofthe threaded holes to firmly attach each of the lens trays on the base.6. The lens tray fastening device of claim 5, wherein the base issubstantially square, the connection lines between the first locatinghole and the second locating holes are on the same diagonal line in eachof the areas.
 7. The lens tray fastening device of claim 5, wherein boththe first locating hole and the second locating holes are blind holes.8. The lens tray fastening device of claim 5, wherein each group ofthreaded holes comprises three threaded holes.
 9. The lens trayfastening device of claim 5, wherein the connection line of each groupof threaded holes is on the same line.
 10. The lens tray fasteningdevice of claim 5, wherein each of the plates is a long strip.